MarketFactory.sol

Singleton factory that creates and manages prediction markets.

createMarket(priceId, duration, batchInterval, minLots)

• Registers a new market in OrderBook via registerMarket()

• Requires MARKET_CREATOR_ROLE

• Stores MarketMeta with lifecycle tracking

• Emits MarketCreated event

Parameters

Param	Description	Default
priceId	Pyth price feed ID (bytes32)	required
duration	Market duration in seconds	required
batchInterval	Batch clearing interval (0 = use default 60s)	60s
minLots	Minimum order size (0 = use default 1)	1

State Machine

Open → Closed → Resolving → Resolved
                               ↓
Open → Closed ─────────────→ Cancelled

Transitions

From	To	Trigger	Condition
Open	Closed	closeMarket()	block.timestamp >= expiryTime
Closed	Resolving	setResolving()	ADMIN_ROLE (PythResolver)
Resolving	Resolved	setResolved()	ADMIN_ROLE (PythResolver)
Open/Closed	Cancelled	cancelMarket()	24h after expiry, no resolution

Market Registry

• getActiveMarketCount() — number of markets in Open state

• getClosedMarketCount() — number of closed markets

• getResolvedMarketCount() — number of resolved markets

Admin Functions

Function	Access	Description
pauseFactory()	ADMIN_ROLE	Emergency pause on market creation
setDefaultParams()	ADMIN_ROLE	Update default batch interval + min lots
setCreationBond()	ADMIN_ROLE	Update required creation bond
setFeeCollector()	ADMIN_ROLE	Update protocol fee collector address

Access Control

• ADMIN_ROLE: PythResolver (for setResolving, setResolved, payResolverBounty)

• DEFAULT_ADMIN_ROLE: protocol admin (pause, parameter updates)

• closeMarket() and cancelMarket() are permissionless

• Market creation requires MARKET_CREATOR_ROLE

Events

event MarketCreated(uint256 indexed factoryMarketId, uint256 indexed orderBookMarketId, bytes32 priceId, int64 strikePrice, uint256 expiryTime, address indexed creator);
event MarketClosed(uint256 indexed factoryMarketId);
event MarketStateChanged(uint256 indexed factoryMarketId, MarketState newState);
event FactoryPaused(bool paused);
event DefaultParamsUpdated(uint256 batchInterval, uint128 minLots);
event CreationBondUpdated(uint256 newBond);
event FeeCollectorUpdated(address indexed collector);
event ResolverBountyPaid(uint256 indexed factoryMarketId, address indexed resolver, uint256 amount);